Improvement in hydraulic engines



C. D. PAGE.

HYDRAULIC ENGINE.

Patented April 10, 1877.

UNITED STATES PATENT OFFICE.

CLARK D. PAGE, OF ROCHESTER, NEW YORK.

IMPROVEMENT IN HYDRAULIC ENGINES.

Specification forming part of Letters Patent No. [89,380, dated April10, 1877; application filed April 2, 1877.

To all whom it may concern Be it known that I, CLARK D. PAGE, of thecity of Rochester, in the county of Monroe and State of New York, haveinvented a certain new and useful Improvement in Water-Wheels;

and I do hereby declare that the following is a full, clear, and exactdescription of the construction and operation ofthe same, referencebeing had to the accompanying drawings, in which- Figure 1 is a centralvertical section longitudinally through the wheel. Fig. 2 is ahorizontal section through one edge of the wheel in line as a Fig. 3 isa similar section through the opposite edge of the wheel in line 3 3Figs. 4 and 5 are perspective views, respectively, of the butment-blockand dashplate removed from place.

My improvement relates to those wheels which are run by water taken fromwaterpipes in cities and towns. Wheels of this kind are already known.

My invention consists of a butment-block and dash-plate of peculiarconstruction, combined with the wheel, as hereinafter described.

A is the Wheel, which is mounted in a curb, D, and has a pulleyon itsshaft, by which the power is transferred. The wheel is made narrowtransversely, and has a groove, 00, cut in its periphery, in which issituated a series of concave buckets, b b. The whole may be cast in onepiece. The wheel should be turned true, and should be set in itsbearings accurately, to allow close fitting of the butmentblock anddash-plate, as hereinafter described.

B is the butment-block. It has a waterpassage, 0, bored through it,opening at the lower end into groove 0!. by a contracted noz-,

zle, c. It is fed by a pipe or hose, d, which connects with the main. Italso has a rib, f, which fits closely in the groovea, and rests close upto the buckets as they revolve. This portion f forms a butment, and itslength is just equal to the distance of the buckets apart, so that whenone bucket comes in coincidence with the nozzle 0 to receive the impactof water from pipe 01, the next bucket comes in coincidence with the topof the but- 'ment, thereby closing the space between the two buckets,and preventing back action of the water by reason of one bucket alwaysresting within the butment. The position of the buckets is clearly shownin Fig. 1.

The bottom of the butment is depressed or hollowed out, as shown at f,in curved form,

to allow free escape of water from the nozzle downward, and also todirect it properly in a curved direction onto the bucket as it passesforward from the nozzle. The rabbets g g of the block fit the rims h hof the wheel accurately, and prevent escape of the water at the sides.

0 is a metal dash-plate, formed with a tongue, 70, which fits the groovea, and two offsets, l l, which fit the rims of the wheel. It is securedon top of the curb, and its object is to prevent the water from beingdashed out or carried up by the buckets under the rapid motions of thewheel. The inner end of the tongue may be turned down, as shown, tooppose the water.

Water-wheels of this kind have been before known; but, so far as I amaware, the discharge from the nozzle is directly against the buckets,and no butment is used to prevent back action. The prime feature in myinvention is the butment-block B, serving the double purpose of a nozzleand a butment, as described, to prevent back action.

The buckets in the wheel might be extended out to fill the wholediameter of the groove, flush with the periphery of the rim; and thebutment-block and dash-plate might be fitted thereto, the former havingflanges, which would overlap and embrace the rims of the wheel. Theeffect would be the same as before described.

What I claim as new is-- 1. The butment-block B, constructed with thebutment f and the internal water-passage c, in combination with thewheel A,in the manner and for the purpose specified.

2. The butmentf of the block B, made concentric with the wheel to anextent equal to the distance of the buckets apart, and formed at thebottom with the curved depression or ofisetf', for allowing the properdischarge of water upon the buckets as they pass forward, as shown anddescribed.

3. The combination, with the wheel A, of the dash-plate G, as and forthe purpose specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

G. D. PAGE. Witnesses:

R. F. Oseoon, E. B. Soorr.

